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Dec. 18, 1928 1,695,734

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UNITEE STATES PATENT OFFICE.

PATRICK 1?. LA MONTAGNE, OF BOURBONNAIB, ILLINOIS, ASSIGNOB, BY MESNE A8- SIGNMENTS, T POPE MACHINE COMPANY, OF KANKAKEE, ILLINOIS, A CORPORA- TION 0]! ILLIN'0I8.

KN ITTING MACHINE.

Ap nmion filed August 19, 1921. Serial No. 493,595.

. vantages of a revolving cylinder machine in the knitting of a complete ribbed leg stocklhe object of the invention is further to provide a knitting machine of the revolv inp; cylinder type capable of knitting automatically ribbed leg'stockings from toe to top in series with each stocking separated from the succeeding stocking and with the top left ready for finishing.

The ohiect of the invention is further to provide means for preventing or eliminating so called double or multiple headers in starting plain knitting on the cylinder needles of a hosiery knitting machine.

The object of the invention is further to provide a knitting machine of the revolving cylinder type having both cylinder and dial needles and capable of knitting a complete ribbed leg stocking in which no cylinder :10 needles are thrown out of action in making thc ribbed leg. thus insuring the rcquircn elasticity in the leg portion.

The object of the invention is further to provide in a knitting machine which auto math-ally knits a complete ribbed leg stockll'lfI means for measuring or determining the actual length of the ribbed portion of the leg and independently of the numb r of rounds.

The object of the invention is further to rovide in a revolving cylinder machine having both cylinder and dial needles for knitting: plain circular. reciprocating, and ribbed work. and in which the knitting pro- 5 cccds from the toe to the top of a complete stocking. means for securing the requisite casting otf tension at all times.

These and other objects and features of the invention will appear more fully from the des ription and drawings and will be particularly pointed out in the claims.

The drawings illustrate a preferred form of mechanism embodying the features "of the invention in connection with a type of revolving cylinder knitting machine such as show in the patent to Scott, No. 1,152,850, granted Sept. 7, 1915. and reference may be made to that patent for a more full disclosure of some of the details of the machine not particularly concerned with the present invention. In illustrating the present invention some of the well known and familiar adjuncts to a knitting machine, such for example as the yarn tension device, are omitted and the details of other mechanisms, such as the particular shape and position of cam grooves and projections and ratchet teeth, are omitted or indicated more or less diagrammatically because these are readily arranged by one skilled in the art to accord with the particular piece of work desired.

In the drawings:

Fig. l is a front elevation partially broken away of the entire machine as arranged for knitting stockings.

Fig. 2 is an elevation of the left hand side of the machine partially broken away but showing the mechanism above the cylinder top omitted in Fig. 1.

F ig. 3 is a rear elevation of the machine with some of the parts broken away. i

Fig. 4 is a top plan view.

Fig. 5 is a detail partially in top plan view and partially in horizontal cross section particularly showing the picker motion.

Fig. 6 is an enlarged detail in vertical cross section showing the main body of the machine and the instrumei'italities particularly concerned with the formation and handlin of the web.

Fig. is an cnlar ed detail partially in vertical cross section oking toward the right hand side of the machine showing the drives for the pattern drum and pattern chain.

Fig. 8 is a detailed elevation looking from the axis of the cylinder showing the widening picker or dropper, its bracket and 00- operating devices.

Fig. 9 is an elevation looking from the axis of the cylinder showing the yarn guide throat. v

Fig. 10 is a view of the long and short butt cylinder nccdles employed.

Fig. 11 is a view in vertical section showing the latch ring and brush wheel for con- :rolling the needle latches.

Fig. 12 is a detail in horizontal cross section showing the connectionfor raising and lowering the cylinder.

Figs. 13, 14, and 15 are details in horizontal crosseection taken just above the dial cam plate showing ditfercnt positions of the dial cams and their 0 crating connections.

Fig. 16 is a evelopment of a portion of the cam-ring showing the relative positions of the stitch cams, pickers, switch cams, etc.

Fig, 17 is a top lan view of the sinkerbed showing the a justahle peripheral cam for controlling the slicing yarn-guide.

Fig. 18 is a detai view of the splicing yarn-guide and thrust-liar and the parts associated -thcrewith for controlling the splicing yarn.

Fig. 19 is a. detail of a portion of the construction shown in Fig. 18 with the parts in ditl'erent position.

Fig. 20 is 0. din rammatic view of a complete stocking as nit by the machine in a preferred for: of this operation.

Fig. 21 1 top plan view of the dial cam bed showing the yarn clamp and cutter.

Fig. 22 1s a side elevation of the parts shown in Fig. 21.

Fig. 23 is a detail showing the operative connection between the splicing yarn-guide and the cutter.

Various parts are omitted from various ti ures of the drawings for the pulpoht: of c earness of illustration.

The frame of the machine is shown as comprising a stand 1 supported from the floor hy four legs 2. The stand 1 carries the two vertical side frames 3 and 4, which in turn support the table 5, from which projects at the left the lied-plate ti, which forms the support for the knitting instrumentalities.

The main driven elements from which movement is imparted to the knitting in strluucntalities and from which the various mechanisms are automati ally controlled are: lirat, the huh 7 carrying the hoveled gears t5 and i), (s e Fig. ii) for revolviiu; and reciprocating the needles :n-eordiiu iln circular or reciprocating; knitting is required: second, the pattern lrun| it) (see lfiip', Ii) which automatically eontrole various operations and elements to he deserihed: third, the cam shalt it (see Figs. 1, 2 and 7) and fourth, the pattern hain 112 (see Figs. 1,2 and 7). A g n ral lunleratamlii'ig at. the outset of these elem nts and the means hy which they are operated is tlt-Hll'nlzle,

'llie huh 7 rarrying the beveled g ars R and J is \t-t'itltil to the. l ft end ot the main shaft 1 actuated through a Clllltflkt'fllllll 1 1- plined to the shall 13. This cluteh-rollar may he thrown to the left, as shown in Fig. l, to engage an otherwise loose reciprocahle gear 15 mounted on the shaft 13 or to the right to engage the face of a tubular sleeve 16 which is journaled freely in a long bushing 17 fast-1n the right hand side frame 4. This sleeve 16 carries a fixed pinion 18 and a fixed pulley 19. The huh 520 of the pulley- 1.9 may have secured thereto a hand crank 21 and be fastened to the sleeve 18 by a pin A loose pulley 23 is mounted on the hub 20 of the pulley 19. The shaft 13 is IQtltwttl at its right hand end to lind a. hearing ithin the sleeve 16 and may extend past ti side frame 4. The bushing 17 has ro .ihly mounted thereon a sleeve 24 cart-yin; I the left hand end the pinion 25 and at the right hand end the pulley 26. The pinion 25 meshes with a gear 27 fixed to a crank shaft 2 journaled in the side frame 4 and ear -ying fixed thereto at the left a gear 29 having a crank pin 30. This gear 2.) meshes with the pinion 18 on the sleeve 16.

When the pulley if) is driven, the pinion 18 is driven directly at the same speed. When the pulley 26 is driven, it drives the pinion 18 at a speed determined by the gear train 25, 27, 29 and 18, thus enabling the iinion 18 to he driven at an increased speed. vlhus, the hub 7 with the driving beveled gears and i. may be rotated at different desired speeds according as the belt is on the pulley 19 or the pulley 26.

The rcciprocatory or oscillatory movement of the huh to obtain reciprocating knitting is secured when the clutch-collar 1 1 in engagement with the reciprocal gear 15 (see Fig. 1), The. crank pin it} is connected hy a pitman 31 and pin 232 with a rector 33 meshing with the reciprocating gear 15 and mounted on a sector shaft 34 at the hack of the machine helow the main and crank ehal'ts. The radius of the path of travel of the pins 31) and 32 (see Fig. 3) is such as to cause a reciprocation ol' the g ar 15 and, (.nllfitiqlttiltly, oi' the gear-s t5 and 1) through one complete rotation in each direction. The drive during such reciprocation is usually from the pullev l!) but the speed of reciprocation may he increased by driving from the pulhy 3G. The g ar train for viprocating knitting is; more fully shown in the aforerati l l llt'lll No. 1,152,850.

The. means moployed tor shitting the ciutclncollar it to cause the continuous rotation or reeiprtwation of the huh T and. its connected gtills and the meme: to ell'cct the shifting of the driving helt hetween the loose and the last pulleys will he (l". t'lll)ttl later.

The. pattern ani haii' .1 (we Fig. 7) is mounted in the. side lrann-s I, and 4 and is driven hy a rzn ic-ula-el 31? fast thereon having irregular teeth engaged and advanced h a pawl 36 carried hy a. pin 37 in a crank-arm 22H integral with the sector 33. The wheel 35 may not advance at all {Amos Withoiiz pvrforminq too short a. cycle .11 the motion fill llli nimii ll U'Hl to prrmit its int-Prnnliinp .iiiowmeiii ilu: pawl r; pmvenloil from outrun; iuri imiili f ll! wheel or i wifliiilw' p rmiiir-il H i-iigz sgf a short looili. only i :i :Jrui :mlii lh lii'i next tooth in ii; ill; ia il ii m an -1 f n purl controller iii ll'lifivllri j lliliiiil l or fuioruiiiu-i mi i i" mil 4!? Lllhl n11 n5 fin Ward arm i ,rmiii'oci w; :1 lug ll u; w- Opuraie \i'iiii ll)! ymiirrn l: of tin; pin tern chain. -.i Tiurue-mini zii'n; oi ii pawl controllnlaw Vi-Cl ii -pm 'w surfdrn for the in? of the par-:2 Hi3 Zllll spring 4i, coiiiiv-"ting the: ruir lFSHl ni' controllrr to :2 pin "15 projrrt ng from i right lizinil fllli i'riimr l. wtto miiiiiiuiu the forward rml ml hr pawl coi'iiroilrr in on ageinif'iii .i'iili 151i: piniorn chain.

he paitorn chain 43 (we Fig. I} Tlllll'fi on a sproclral-n-eol 46 integral with :2, ratchet-heel 47 loosely joiirnulml on thv shaftll. The ruthhet-whuol 47 is advanced by a, pawl 48 pivoliud at 49 on the upper (llll of an arm 50 pivotal at its lower ri'il 51 in the side flllllll 1%. This pawl 48 is :iilmnmwl by mumsoi? am ec eiitric 52 inn'grnl with tlw sector 33. and ilie short Hops desirable for the mivimve oi tho pattern nlmin illl' swnrmi by limiting tl rorzrwuril mowinrni of tlmpawl. This i-ilwl -il by wwr 3 fulurumwl iii Ill on ilw mil,- flflllli iii: t forward rn l inhxniling oppwirii grin iirnjwiing luiorzilly i'i-hni llll liuliciil :flll lj 5i, mnhwiing ill-i :llll'l a bin 5)? ltl-lPIH3 l on The fr'crir the arm .34) in (minim viilwr will trio 52 or this lu minl will f 1hr l:

The paltrrn min 3 illiw'l m rontrollcr in de ti'rminu the r- Hi which (ho pawl 3&- may i'llJihfiF iliu rnvlr wheel 35 and aid-mince thu'mnn shaft ii, For this purpose {he pattern chain curries siiilable pattern lug; 4:! ol \liil'rrm'il lirip lits mill dimensimm the lllgll rl of \vliiili (,l-"ifl" mines the maximum m lill llli'lll of the pawl rontrhllwr if." lillil pox-m l iinpins 1 the too of Wl f Elle rno gh h 1 rirlillr tho lllifli-WlAPl In and llr) 5 il roiiirulh-r, to entor upon lw l'lHik-lh'tl :IE iln' moi-V1, withdrawn part of its lorwziril innl hurliwzu'il 4min 10 mi: inlo l'lifi longmoth upon the m'rk-wlieel..

The gonvrz l constrnrlion of the piittnrn rhain 4 Hill he chain trough or li lilur 58 may be sulwtnnlially as disclosed in HM ufuifitll l mtvnt to SC('7l.l,. i

Burlcl or overilmm of tho rack-whirl or Til-l1"llfllL-YlllfllS and their lll'l'il flilllliiln may be JlG'VtlllPd by providing FllliillPl l i'i 'ilirli bra es, on" of which ,9 i i' ll fll in F s. 7.

Pill

is U3. U5

i up; -E' 'lil 1hr :iliilo ill ii-rminates in a i Em UH rngaging ll p'l 'lpllclfll groove M i xiii-h mlhir i4. 'lli-r clutch-collar i pmii-iwl mils whom (5.5 vom t-crating rrllllhiily with wrroqm'niling depressions his rr iprwziling grzir 1:") Hill depressions in tlwlaw oi ilir lOL'YU ll? of lllu goal l8.

Tlli' rig'ril liZlllil enil of the rod -10 (see Fig. i) is xilill liil uiiiriently to form a Qliilr lwiiriiig f r :2 l.iUll--Slll{7l)('1' (it) which is furlln l guiilril upon ll pin hold parallel with the rod 40 in the side iramc 4. The rigghi haml nnil of tho ram-shaft ll carries a mini Tl in the form of a suitably shi iped prripliri'nl flung-e for acting upon the (lepemlin lug 72 of the bolt-shipper 69 to more the l 0lt-nl'iipper and Shift the belt it from thr one to the other of the pulleys 19 l)!(l 20. The cam 71 may be provided when ll ill"ll with n portion 7 1 rcmovably attachi'il llirll'cin 'or moving the brlt-sliipper 69 to an rxirv'mlr right hand position to Shift ilk irli onto mu lUOM pulley 23 to stop the malin hi4 inut mind when, as usual. -i 'liilli l-H knillii'ig a serien of complctv in-* 'l'lirboll-shipper (i9 and its at nip iii": msitmllrd by a spriny 75, at

if of; ill Til p 'mlwii 1;! T? on lhr frame engages :1 lug on imlM'll-"dlllflll'l' when it is in its extri-ine pwiiion and ilio belt is on the loose pulley A lmiillle T9 is provided for 1min- Hiill) moving thelxltshippor.

'linmain paltrrn drum 10 is hollow (see 4s. .8 :HVl 7) uinl with an integral or at 'lii-il grsir H0 in mounted for rotation on im- N-ri'or mm :34 which is extended to tho loft hum! xido of lhi', frnnirfor that purow, The ram slmfi ll is similarly exl('il1l"(l 21]](l provided with :1 similar gear Bl. The, n-urn flfl l 81 i ivi=h with an idler gczii mounted upon a stud 83 projecting from the frame at an intermediate point. The motions of the shaft. 11 are, therefore, transmitted without change ,in direction or extent to the pntiern drum 10.

Tl)! location of the pattern drum directl hvhiml the axis of the needle cylinder an lllllli'l the table enables a comparatively large illllll'l to be employed and thus enables :lw liar-m: number of pattern indications llikt'fih'ill') to u complicated automatic mar 'ino to bo provided. It; has not been iiticmpted in 111e, drawing herein to indicate i :ii ()lll mill to tho shipper an at the ii "Ni {ii i iv lrmnr. tending to hold the. 11: l'zmof the mun Tl. A latch cc-mpletely the number, shape or extent of these pattern indications on the drum because they will be varied as required by the particular conditions and their location and arrangement and shape are well within. the skill of a person familiar with the art.

The construction and operation of the main driven elements by which th operations of the machine are controlled will he sutficiently understood tor the present from the foregoing description.

The knitting instrumcntalities comprise two sets ot needles. The cylinder needles employed for knitting pl:.tin'circular and reciprocating work are shown as of the usual pivoted latch type. The dial needles, which primarily act: in conjunction w'th the cylinder n edles to knit ribbed work, are shown as of the separate latch type. such, for example, shown in the patent to Pope and Randall 1,096,946. May it). 1914 but any suitable form of needles may he emplolyed.

he cylinder needles are held in grooves on the surface of the needle cylinder or carrier which rotates and reciprocatcs with respect to the actuating cams which 'are relatively fixed, and in the same mann r the movements of the dial take place with respect to the relatively tixed dial cams.

The bed-plate (3 projectinc from the left hand side of the main frame lllUVltltL-t a bearing for the horizontal beveled gear 84 (see Fig. 6), which intcrmeshes with and is driven by the beveled gear 8, already described. This gear 84 rotates on a fixed vertical axis determined by the pocket in which it is seated and has its bearing in the bed-plate (3. The central part of the gear 84 is cut away to provide an opening through which the knitted eh descends. A sleeve 85 integral with the gear 84 extends upwardly and the needle cylinder 86 is mounted on this sleeve, being keyed thereto at 87 to permit relative vertical movement but to cause the cylinder to rotate with the sleeve. The cylinder, which may be. of any suitable construction. is shown as of a familiar built-up character in which independently removable needle guiding, walls 58 are inserted in the. grooves of the ylind r and held in pla e by a beveled collar 8). The cylinder needles ar shown mounted. in the grooves of the cylinder between th Walls 88 and held in phnc by the. spring; bands 90. i

The cam cylinder {)l is provided with a concentric horizontal flange 92 titling in a concentric opening in the bedplate ti rectly over the gear 84. This tinn locked in place to the bed-plate screws 93 and acts to retain the lea; 5-1. in its seat.

The gear 84 with its sleeve and the cam cylinder 91 are thus fixed against vertieal movement. The needle cylinder 86 is, however, vertically movable to adjust the length of the stitch and for other purposes and to enable it to be removed whenever necessary from the machine. This vertical nmwment oi the needle cylinder is secured by a plurality of hardened steel. pins 94 vertically mounted in bores in the gear 84: and supporting at their upper ends the needle. cylinder or the collar 82 which forms the bottom of the needle cylinder. These pins 94 rest upon and travel with the gear 84 over a ring 95 of polished steel or other suitable anti-friction material. This ring fl-Tis seated upon or connected to the upper end of a tubular column 96 and therewith is mounted concentrically of the axis 01' the needle cylinder in a bearing in a depending cylindrii al flange 97 of the bed-plate 6. The column ill) and ring 95 are vertically movalitcthrough automatic means, to be deseribed and thus through the pins 94 act to elfcct the. desired, vertical adjustment of the needle cylinder and, consequently, of the line over which the stitches are formed during plain knitting. This is determined in the ]/lt-i-llt ease by the position of the upper face of the sinkers which are preferably employed. The radially movable sinkers on are of a familiar type and are mounted to slide in the radial grooves of a bed 99, rigidly mounted upon the extreme upper end of the outer face of the needle cylinder upon a flange 100 having deep longitudinal grooves in line with the needle grooves to provide for the removal of the needles. The grooves of the sinker bed 99 are located midway of the needle grooves. The inner ends 0 the sinkers Share received and guided by a nosing 101 secured to the inner counterbored upper end of the needle cylinder 86.

The yarn is drawn by the needles over the upper edge of the sinkers in the usual manner, so that the upper edge of the sinkers constitutes the efiective top of the cylinder. lly reason of the attachment of the sinker bed 99 and nosing 101 to th cylinder 86, these parts move with the cylinder to increase or decrease the length of stitch.

A rigid upright post 102 is rigidly secured by screws 103 to the flange 9:2 of the rain cylinder 91 and is located centrally at' the front of the machine. The sinker cam rim; 104, containing the usual earn groove .ltlf) for operating the sinkcrs 98 tlirough their butts 106, rests upon the sinker bed 99. This cam ring 104 has a depending peripheral lan e fitting over a concentric shoulder portion of the sinker bed 99 and the. bottom of this flange rests upon a ball lieal'iri l it)? on a peripheral flange of the sinker bed. The cam ring 104 is rovided at the front with lugs 108 straddling the post 1912. Adjustable set screws 109 in needles.

therewith and at the same time is prevented from rotation. This sinker rain ring 18 utilized as thev support for the. dial mecha nism and, consequently, the ball bearing 10? is provided.

The cam ring or cylinder 91 supports and carries i cams for operating the cylinder These needles. as shown in Fig. 10, are of the ordinary latch type and similar excepting that about one halt' of the needles "are provided with short butts 11d and the other. half with longer butts Ill. The long butt needles, as is usual, are thrown out of action during the knitting of the heel and toe and two sets of needles co perale. as usual, in knitting the rircular portions of the web.

The cam cylinder 91 recessed or rat away, at the upper portion of its inn r face and'in this recessed portion are i'i'iounttal th hardened. steel cams. The arrangement oi the cams is shown in a general way in the development illustrated in Fig. 1 Th main sef'tion 112 of the am presents a straight: upper edge. 113 upon which the huttsof all the needles at the time in action travel when they haw finished their stitch forming movement, The catn sections 114 are fitted in the rct sis in the cam cylinder Ol at the rear and present the usual oppositely disposed slopes ll?) to return to the; edge 113 the butts or" an depresset'l n edl s. letween these can] sections the cylind r 91 is cut away and midway of the cut awav portion is rigidly mounted in the cylinder :1 vertical standard 116 upon whi h a-hottom center cam 117 and a top center cam 119 are mounted with their inner faces flush with the inner faces of the other ram s'e'ctionsj 'lhc cam 118'. as usual. is flat at theftop and provided with the slopes 119 to guid the needle butts lifted above the n r" mal level. Surrounding substantially the rear half of the cam cylinder 91 there is mounted a segm nt 120 having a base flange l2] and this segment serves as a. carr age for the stitch'cams 122 and 123. When the knitting operations are being performed, this NLffl'ltflt is in the position shown in Fig. 5, fitting closely against the peripherv ot the cam cylinder 91 and resting at. its base upon the upper face ot the flange 92.

The segment is movable radiallv and guided in its movement by a gib 1234.. taking into a radial slot 125 in the flange 92 and under a lug 126 of the post. 127 which extends vertically up from the bed-plate (i at the rear. The segment is further guided by slots 128 formed therein and through which set screws 199 2295 into the flange 92. The segment: may be u c ed away from the needle cylinder to withdraw the stitch cams by means of a band lever 130 pivoted on the flange 9:2 and is normally held up in position by a spring 131 seated at one end in the lug 128 and at the other end in the flange 120 of the s gment. The stitch. cams. when the segment is in normal position. also we tend flush with the faces of the other (am sections and those stitch cams are provided with upper urved slopes 13:2 and with recesses 132; to provide resting places for the narrowing piclters 1251.

The usual switch cam l3? provided for elevating the set of needles having the longer hutts to throw them out of action when the heels and toes are knit. This switch ram 13.3 is shown as carried by a radial spindle 13G held in the bearing block 1 37 on the, cam cylinder flange 92. This block is provided with a cam slot 138 (.'0 operating with a s-rew 139 on the spindle 1317. A spring 140. t nnecting the spindle to the flange 92, holds the arm 14,1, extend in;' laterally from the spindle, in engage ment with a rod eat) passing up through a hole 142 in the bed-plate 6 and controlled by the main pattern cam. The cam slotlIFJ is so shaped as to give a radial movement to the pindle When-it is rotated. The switch cam 13;? normally stands during cirular knitting in the position shown in Fig. 16 and extends over the butts of all the needles. 'hen reciprocating knitting is to begin and the rod is lowered, the am withdraws. radially and at the time its point is depres ed so as to cause it to en.- gage the butts only of the long butt needles. Hence. in its inner position the switch cam will slide into position to be caught by the stit'h cam needles of both lengths of butts. while in its outer position it will elevate the long buttneedles to a plane where they will he caught and'carried above the top cent r cam llt.

A guide cam 143 is n'uninted on a stem 144 in the post 10:2 and this cam acts to position the hutts of the needles at their upper idle level so as to co-operate with the widening picker 145, housed, when it is set tor the actuation of the next needles, to encounter it in a notch 146 in the under-side of the earn 143.

The. dial needles, which, as already noted, are indicated as of the separate latch type and which co-operate with the cylinder needles to make ribbed work, are supported, as already noted, from the sinker cam ring 104. For this purpose an arch 147, carrying a central hub bearing 148, is fastened at its lower flanged opposite ends by screws 149 to the top face of the sinker cam ring 104 at diametrically opposite points. A vertical sleeve 150 is mounted in the bearing hub 148 and is provided above the hub with a gear 152 pinned thereto. In order to provide for I retracted, as shown in Fig.

the necessary raising and lowering of the dial with re pect to the cylinder, a cam mechanism provided between the gear 152 and the hub 148. For this purpose a collar 153, having a to ram surface, is secured to the hub 148 an a co-operating collar 154, having a lower cam surface, is mounted on the sleeve and provided with a radiall projecting arm 155 (see Fig. 12). A lin 156, extending to the iirm 155 and operated from the attern drum, enables the collar 154 to be 5 ifted rotarily with respect to the collar 153, thus raising or lowering the sleeve 150 and the parts connected thereto. A radial ggooved dial bed 157 is rigidly secured to the ttom of the sleeve 150, as by screws 158 and in the grooves of the dial bed are mountv ed for reciprocation the separate latch dial needles 159.

The dial cam plate 160 (see Figs. 4 and 6), on the lower face of which are mounted the dial cams, is held against rotary movement in any suitable manner, as by means of a in 161 extending vertically therefrom and s iding in a lug 162 projecting radially from the hub 148. This cam plate 160 is preferably seated against the bottom of the shoulder 151 of the sleeve 150.

Rotation of the dial bed 157 with the dial needles in synchronism with the cylinder 86 and the cylinder needles is secured in the form illustrated by a gear train extending from the gear 152 to the beveled gear 9, already described. For this purpose a vertical bracket 163 is secured by a horizontal flange 164 to the bed-plate 6 and provided with a radially overhanging arm 165. A vertical shaft 166 journalcd in this bracket carries at its lower end a beveled inion 167, intermeshing with the gear 9, an at its upper end a gear 168, intermcshing with an intermediate car 169, pivoted on the brzu het am an in turn meshing with the gear 152. The intermediate gear is made with a wide ordeep face, so as to insure intermcshing with the gear 152, whatever may be its position of vertical adjustment.

The dial cams for controlling the dial needles in the preferred form of arrangement are shown in Figs. 13, 14 and 15. These cams include two pivotally mounted sections, the stitch cam 170 pivoted at 171 and the casting-oil cam 172 pivoted at 173. For reasons which will appear in the description of the operation of the machine, these cams are so arranged that either may be projected while the other is retracted, as shown in Figs. 13 and 15, or both may be 14. For this urpose levers 174 and 175 are pivoted at 176 and 177 respectively on the top of the dial cam plate 160 and are slotted at their ends to engage pins 178 and 179 projecting respectively from the stitch cam 170 and the casting-o5 cam 1722 through slots in the cam plate. These levers are operated by a rod 180 from the pattern cam. The rod 180 is in slotted engagement with pins 181 and 182 extending res ecti ely from the levers 174 and 175, and t ese slots and pins are so arranged that the required movements of the two cams take place when the rod 180 is shifted in the one direction or the other.

The posts 127 and 102 (see Fig. 6), which are rigidlgosupported at diametrical points from the .d-p ate 6 as already pointed out, sup uri the latch-guard ring for the cylinder Beetles. This ring is in the form of an open drum'shape d casting 183 provided with wiarwardl extending arms 184 extending 'ortwecn t e upperforked ends of the iii? and pivoted on a stud 185 exten ing tt'irough said arms and provided with a forwardly extending arm or lug 186 having a positioning gib seated in a groove 187 in the to of the post 102. The latch ring ma be he d in its seated position by a suitab spring catch 188. Upon disconnecting the arch 14 and removing the parts 611 ported by it, the latch ring may be swung a at its pivot to enable the needle cylinder to be removed.

When the latch ring is in its normal seated position, its lower beveled edge is in a plane perpendicular to the axis of the needle cylinder, and its inner cylindrical face is concentric with the axis of the cylinder and at such a distance from the face of the cylinder needles as to prevent movement of the latches encountering it in an open or closed osition. A rotary brush latch opener 189 Fsee Fi 112 is mounted so that it will encounter t e inder needles rising on the slope 115 of t e cam during circular knitting. This latch opener is shown as a thin'brush wheel having radial tufts mounted for rotation on a screw projecting at an angle of substantially forty-five degrees to the axis of the linder from an arm 191, to which it is 100 ed by a nut 192. This arm 191 is ad'ustably mounted upon the side of one of t e arms 184 of the latch guard ring 183, which is cut away to permit the brush to contact with the cylinder needles at a point immediately above the upper part of their rise, due to following the slope 115 of the stitch cams in the direction for rotary work. This cutout portion of the latch ring maybe an enlargement of the cut usually made at this point to give the opening latches room to swing in, the unbroken wall of the latch ring extending around the needles whose butts are traveling on the ledge 113 or in a more elevated position and preventing the opening latches. from closing until the needles have been lowered beyond its influonce. I

The latch guard ring 183 (see Fig. 9) 18 cut away or slotted at the rear to form n wide parallel wall slot extending centrally and radially of the cylinder, thus providing a spat-c for the operation of the yarn guidcs, of which there are a. number. This opening or slot extends between the arms '184 of the latch guard ring: and is clofwd at its bottom by a throat-plate .93 forming ill. the intersection of the inner surface: of the arms 184- with the inner surface of 1- latch ring the bottom of n rm-tangulm throat 194 from rithcr corner oi which the yarns may pass directly to the li 't'tll fl t" cling in thc groove betwcvn tho (arm r our: 117 and 113. The gap in the latch ring :zt the throat 194 i. made sutiiriently large in accommodate the large number of yarn guidcs, which is churactcristiv i thc ma.- hlnG. I

In order to lose the upper part f they gap formed by this yarn feeding i'l'iluill there is provided an inroniplclc annulus lid) (see Fig. 6) fitting a rec ss in the latch ring; and rotarily mountcdthererm with its hori zontal flange 196 held in pluce by a suiluhlo. clamp 197 (see Fig. 4 secured to the latch guard ring. Accordingly as this annulus is rotated in one direction or the other, 0110 or the other of its pointed ends 19% arts to close the gap, thus providing an unbroken latch ring for those needles which lifted during the making of the lu-cl and toe. Abcll crank lever 199 is fulcrumwl on a stud 200 projecting from the left hand. face of the post 127. The upper vertical arm of this bell crank lever is connected by a. tension spring 201 to the latch guard ring adjacent the clamp 197, while the horizontal arm 202 of the lever is actuated by a thrust bar controlled by the pattern drum. A Wll'fl link 203 transmits the movement of the bell crank lever to the gap closer ring li$ 5.

The yarn guides, which may ho varied in number as desired, are herein shown as time in number (see Fig. 9), the left hand wi l one 204 being for splicing yarn and the next four in order 205, 206, 207 and 208 carrying the regular yarns. These yarn guides are all in, the form of lever pivotaliy mounted on a stud 209 (see Fig. 6) held in lugs i310 extending up from the rearward arms 184 of the latch guard ring and bridged by ca piece 211. These yarn guides arc controlled from the pattern drum.

During the knitting of the toe. foot. heel. and ankle of the stocking or during thc imitting of plain work on the cylinder nccdles when the dial is elevated and thc dial needles are outof action, the rcquried tension on the web is produced by the sinker-s, but when the dial needles are thrown into action and ribbed work is knit on both sets of needles, it is necessary to provide other means for securing the requisite tension on the needles to insure casting oil, and this tension must be applied evenly and uni- ,.h the hooked ends outward of the needle cylmdcr. When Ii. mu if'll zivlion, those grub bars seize the 30 w: r i -til il l lill lll thw knitting point and tin-h. l; icusou of thcir weight, and the origin of thc pails ussoviulod with them, art by gruvit to drug tinwci) downwardly uirl producc th no sury irns'ion. 'Whcn 35 th lZ(L' 'I Y ll V for 2h ten. -..-u has ceased, th urn witlulnmu min ii web and rcstorcd to thc uppcr plbfi ion rczoly for action. in bii'orm illl1 l mtwi :l tulmlm' shaft 214, e xt udiug rent rally down uv-ugh and below the noodle cylind-nr, is r lly secured by a. flange 21:? ill its uppci end to the bottom of tho dial bed 157. A voila! 2H3 is mounted to siidc on the shaft 214 and is hold in fric llomll engagement therewith by spring prcssm'l plunger-s 21'? mounted radially therein. The grab hnrs arr pivotally mounted til :zl in this collar so as to swing radially of ill-\- asis of the cylinder. A sleeve 219 is mounted to slidc on the shaft QM and at; 1 5' upper cud is provided, with an annular flange 22 having a circumlcrcntial series of openings therein. one for cnrh of the grub hora 12.12, The wnstructi u is such that when this sleet: 319 is in in; u 'ipormost posi-. lion TtflillVfily to the collar .lh, as shown in Fig.2 ti, it rests directl under the hooks 213 of the grab hars am hold them in their innermost. position. As this sleeve is slid downwardly with respect to the collar 216, owing to the cam shops of the bars 212, it swings the grab ha rs radially outwardly until, when the slecve'il eated on the collar 216, the grab bars are in engagement with the web. The sleeve 5519 is moved by a rod 221 extending down through the sleeve 150 and shaft 2'34, the said shaft being slotted at to permit the movement of :1 pin 223 by which the sleeve 9.19 and the rod 221 are connected. This rod 211i is automaticall P elevated to raise the grah to uppermost posz tion by suitable mechanism. herein shown as a pawl and ratchet mechanism, and for that purpose the upper section of the rod is provided with circular rack-tecth 224 extending throughout the greater portion of its length, A bracket arm 225 is extended from the hub 148 of the arch 147 around the gear 152 and-on this arm is piv'otedat 226 it lever 227 carrying an actuating pawl 228 engagin the rack 224. The lever227 is actuated y a cam projection or projections 229 on the upper surface of a projecting portion or collar secured to the sleeve 150. As this sleeve rotates, it will be seen that the pawl 228 will be moved up and down to engage the rack 224 and raise the rod 221. A suitable spring 230 holds the pawl 228 in engagement with the rack. A detcnt pawl 231 pivoted at 232 on a lever 233 fulcrumcd at 234 on another bracket arm 235 extending from the hub 148 around .the gear 152. This detcnt pawl 231 is also held by a suitable spring 236 in engagement with the rack 224 and against a stop pin 237. The lever 233 is operated by a bar 238 from the pattern drum to swing the upper end of the lever 233 outwardly and thus disengage the detent pawl 231 from the rack 224 and also disengage the actuating pawl 228 by reason of a slotted link connection 239 with the actuating pawl.

In Fig. 6 the grab is shown in its elevated position. The actuating and detent pawls, while continuing their movement, have no further effect to elevate the rod 221 above this position. When it is desired that the grab should go into actiornthe pattern drum acts to give a thrust to the rod 238, thus withdrawing both pawls from engagement with the rack 224. As the rod 221 and the arts connected with it are comparatively eavy, the rod slides down by gravity, thus sliding the sleeve 219 down and (ramming out the bars 212 until the sleeve 220 seats on the collar 216 when all the parts slide down as the web is knit, producing the necessary tension on the web. When it is desired to release the grab, the bar 238 moves outwardly under the control of the pattern drum and the pawls 228 and 231 begin at once to raise the rod 221. The first action is to raise the sleeve 219 with respect to the collar 216, thus camming in and withdrawing the grab rods 212 from the web thereafter, as the flange 220 of the sleeve 219 contacts with the books 213 of the grab rods, the entire mechanism rises until it reaches its uppermost position, shown in Fig. 6.

It is important in knitted articles, especially those that are used for wearing apparel, such as stockings, that the dimensions shall be as accurate as possible. Stockings, for example. vary in lineal measurement between the various siz s only a comparatively small amount. It is difficult to obtaiirthe same length of web in a plurality of tll'tltltS knitted although the number of courses knit is practically iniptmsible "this invention provision is may be precisely the same. This due to -the varying quality of yarn, to the varying tension and to Various other causes which it to overcome. u made for measuring the length of the knitted web, particularly the length of the ribbed leg and controlling the change 01' the operation. of the machine upon the completion of a prede' tel-mined measured length. This is secured by means of the grab or take-up mechanism, already described, but of course, may be sccured by other suitable means:

In the machine, as already described, the pattern chain 43, is running continuously and when any change in the operation of'the machine is to be ell'ected, a high lug on the chain presented to the controlling pawl 39 which arts to place the actuating pawl 36 into operative position to turn the pattern drum 10 to th new required position. In the present preferred form of construction, means are provided for suspending theoperation of the pattern chain immediately after the machine has begun the operation of knitting the ribbed section of web and then restoring the pattern chain to operation upon the conclusion of the knitting of a predetermined length of ribbed web whereupon the pattern chain at once acts to effect the movement of the pattern drum to effect the necessary change in the o )eration of the machine. Thus, the ribbed leg is accurately measured and any number of stockings having precisely the same length of ribbed le of the required dimensions may be knit. The specific mechanism employed is somewhat S1111- ilar to that disclosed in the patent to Ban:

dall, 1,210,837, Jan. 2, 1917, but in the prescentric 52 the ratchet-wheel 47 is advanced one tooth. If, however, the lever 53 be lowered at its rear end so as to raise the projected portion 239 of its front face opposite the pin 55, the rearward-movement of the pawl 48 will belimited so that it cannot catch in the next tooth and it will reciprocate with an idle restricted movement, thus stopping the rotation of the ratchet-wheel and the pattern chain. The awl 53 is moyed into position thus to stop t e pattern chain by a suitable cam 240, so positioned on the pattxrrn drum 10 that when the change to ribbed work is to be cii'ected this cam rides beneath an arm 241 connected to the rear end of the lever 53. This causes the lever 53 to rock against the action of the spring 242, by which its rear end is connected to the frame, and to raise the forward end of the lever and bring the projected portion 239 opposite the pin 55. The pattern chain and pattern drum thereupon remain stationary during.

* means may he provided fo furthzr opvrntion of tin? mau -lino and until the conclusion of llnhnittling; (ill 'ihc prelim i'vrmincd lcn' 'h of ribbed win The rod which travels downwardly with the {Ir-ail is provid--'l section 2224 with a tin" and on this ilireadcd section clamped in; moons of the loci. disk (sec Figa f3 and. ill. not it such point on the I lance ii. tz'siirt'ie ilownwnrdl C(niianls will the strikes and uciiui a or nail to the desired lcngili of ril T lrvcr 1'. ii is fulci'nnicd on extended uni trill tron: ans 3 184 of tho latch. ring it'i'is end is prmiml to 11 romir-otor. 248, in turn pivotcd :2 ..L:- slidc bill monnicd l l; no the iiiliilfll hi l;

quoting, onl; end of lhe l.v operating with the disk, is'hrld c a spring -351 surrounding the lonwr the slide not bohwm this I? will i soon filial Wilma traveled ,win 1' 1 Weill: lanai? nun tin" knitted rich l1 coining; inio X'Hii-i, h provhicd n thcrcupon hronghi 7/ i shall 254 carrying lil arm 24! to ,lllli tho arm 24! oil biilcwzzyi from the c: in $1" on the pattern drum rind allow tho lci' r f fl nufi the ocition of line Fpriti 1H3. to to normal pori ion. iihwi whereupon the patte n {I drum arc moved in oil operation of tho l'lm to be done, l'hc ii'lll i'orinwl on or sccurcil lo the: end of :1 shaft 5551- l-li '(1-'l in or in :1. lirnrl-wt ml in n and K change in {in lo rsnililc th s,

hearing lugs 355 on :11. 135i,- formed on or iliil("i"ll lo rho low?! M A helical ixing cow, hot n the log; 25;) and :1 p n 23o iii ml not with normally t hold line of the illli 15.1%. lici-n rwtaizcl'ml l; l illtr'llf from the lawn! 253 to drop and tho arm ihe an; :340 on, the pztiicrn ill will either llllfl rnowd opposiic or pox-it tho firm. Q41.

It desirable also to iirovidc means to seize. the web 'whon iillfi wa l? 5 Hi or near nth its lOWElmOSt position sinl w n fin end. of the knitting oi the stoclginc has hcon reached or nearly reached Wi .l hull insure that the grub be drawn out of rho wch when it is elevated and the amnion? lisglmrgcd from the machine. Any witahlo thin purpose,

but :1- slmplc and preforred form of device ii: illustrated. A bell shaped tube 259 (see 6) ix riyotcd or bolted at 260 to a depvmling flange of the gear 84 so as to form a substantial continuation of the sleeve 85. To tho lowvr end of this section 259 is rivfil'itl at 261 a. long depending concentric tulle; 362. In this tube is journaled adjacent the horizontal axis a, pair of corrugated rolls 263 and 264. These rolls are somewhat ll'l'lllill' to the ordinary takcup rolls of a knitting machine but. one of them, as 263, is proridcd with a shaft extending through rho tube 262 and carrying a pinion 265 moshing with an annular rack 266 (see l and (i) iforincd on a bracket 26? coli J lo oinof tho legs 2 of the frame Alu/vc {he rolls 2). and a frnstro co.- ivol guidc is w n'cd to the tube 26:? to rcct the well i .vvcvn the rolls. Beneath 1 "rolls aim in provided with a collar 2&3?) having a hearing, and referably a hall hearing. on the annular well 270 also bolted in the in :3. Before or at the completion of the ribbed work the web will be directed hr {he guide 268 into the bite of the rolls roll and 2M and as the tube 262' is revolvingiy those rolls. lacing rotated on their own ihrongh tuc lower open end of the tuhc.

-50 roih may he arrangzcd to seize tho lon'cr and of tho wch "well before the com n of tho rihhed knitting and to ford .1 w. slowly out so as to strip tho wi l) from tho grill) hen the knitting of thc i'llllilb Work is complcicd and thus allow ilor functioning with any desired length of -'toi,-l in;;'.

'llnmm slliifi ll. already noted. carri-es; ilw mun drum G0 which controls the l "c from rotary to rcci nocuting knittin: and View qcrsn and the cam 71 which ci'mirolo the change in speed and the lug 74 which may he 115ml to cilcct the stopping of H20 nun-him at. he cnd of its cycle of operation. nut: which is not. USP l in thc preferred operation the machine for making a coinplcic wrics of separate stockings. The grab or inns. 2 device determines: the length of the ribbed work and the shift therefrom to nnol'hcr form of knitting. All the other qwrnzlol of tho machine are under the control of thc patficrn drum 10 which, it will hi? noiicd, located directly in the rear of'the noodle cyiindor and substantially in line with the axis thereof. This drum is provldcd with the neccsa ry cam projections and can! grooves or other pattern indications in) ii may oliviuwly in nnnl (ii a lcngtli niirzi ir f0 proviil ,1- lllc rm uiri-(l pimalily of (in cumfcrcmnl mans of su h (1mm 01" lit."- final tin cm] of H slrnm. i ll scan-w of :mnn. iliriwi inn-s cxtcmlinc' rml zlly of Hir- ("mini and U1 clinml toward llll'fz uf fix" \"ylimicr 'i' thrust ban are iflllllll rccinngnlflrl in combs (cunwmicntly Fuppm'lcd Iifll H r, 'l f I ii p i per mil 1mm inn 0 in Mimi Fig. 18) Tim lmvur mml') 2371 IS mm to a rigid stud 2T3 ext nilmg Fai'nllci in rlrum shaft. 34 l'rmu lllf and 'ranic 3' upper 420m ('inl'lvil by lu on w nrvzi a Hm; 1-2 IS" 4?. ldlf\rl f llrxll us wars ,a'-* um-4m v 1: lit drum thrt lilriii thron h an 0 am: J5 fiHYiil l in the nod-- L l plate 6 and tin vrvw 0f inc pa l 12?. Tim various tlirur 312w Till prcfcnl 2c J":iin the form of livl ri' lmwrnlur imr, of Mai sfcel and may ln- Iwlfil ld hmlwr lllliili', an, their lnwcr cmlm nllmrw w (lzwrl'cil imin parallelism in (o-operate with ilic ur nating cums on tlicpattcrn ixum n5 vicwc l 1mm tllc front of the nmclnnc.

Tiw

Beginning at the loft, lmmi nml ()3 tin: iirmn the first thrust liar Q'Zwi !ii'}'nl;' ili T and which are reprcscnla- .crl. number.

- mb: in ii]? 2 r nimble of m Eliikiii :1 suittun-km iiw'iw. not Mil-s in: gezwi 01 th s ,L m'rcution mm? c izctu'rzimi by the paticrn lcvs-r 28'? having liul') 254$ uni (in ihc stud zuii icclcil an n & cull in a rcr'ticn rmii ontrolling \anicinng yickcr uni; hWliQll main in be il v "mi; :1; L. A: it is neces- {Mme pai'wls in cn ga cincrit rile incy are wiibrming (Y. 5 a 0 the, w ii; ;l;)fi1 a. iwliczil ling: in bar collar Bi )8 2' icz'i iczil llii'nsi; 2: the bracket :1 piuflc i at its no .1} crank icrcr 14*! |Ji.(3 2nd in turn ank-(i l :3 5 (ii it? 'imwr m'mi a? 'Wiil'i .i cram arm no I505 iidflili l sin ll *6 'ilili'ifj in 21 nib ziliic 351m rms c i in ilk periphery of ie i. M. wr cnri inc ahafii carries a crank :12 mi a, B05" 10 the liar i511"). air-wig ii fur r lliftlng the dial cams.

Tnc next: device and the last illustrated controlled by the pattern, drum is the lever *famila r type.

meme;

dread described, for stopping the actuation o the pattern chain.

tance between the stitch rum: or lhv linder needles and the top eilge of the isiliii'ai's over which the yarn i.-t drawn in pla n knit tin or the distance between the stitrh cums an the dial needles over lVlll 'll the yern drawn in ribbed knitting. In the (mime-uhtiOn illustrated this Yertirul shifling 0F llui needle cvlimifler null the 3mm suguuu'uul thereby is secured uulmniuirziilr at flu i quired times by the action if the iiu'win drum through the lever 2%, already rel to. This lever 290 is fuli-rumeil uu the 272. Its lower end .8 a plurality of plungers 310 corrmpmiihng to lhv L'lH'lllilferential rows of cum yru iectiens (in the drum, herein ehmvn ue three in iiiiiiiiill. These plunger-s (see l and :2) hawadjusting screws Hi1 and. hurl; nuts 31; m l engage the pattern curse. The upper mm of the lever :25?!) i iurvml lulwullv 2H. 3 I and seats beneath the uniler side e? ii ii 314 secured to the hurl; m" th in llllll ruluimi 96. The lower end of the (-nlumn 36 ii: seated in a ring hearing formal on flu 11mm {1111' bracket 315 secured in the HI; file of the table 1 and restrained fru' illiueg by the cum lug: illi eerurml lo (hi wlumri. This lug haw u ri-vess with u sloping fu l 317 reeling on ii plunger 318 veriixuily zuljustalile in the annular bearing 315. An arm 31!) projects forwardly 2.1!]!l ix iulugileil to be operated by l'he knee to ill wt mm movement of ihe column fill Thus lhr length of the StllLil mu be varied ul illlV time manually he desired. 0

The mwhunirun (l'l'lplt'llt' jli t'muni-rimming and widening the bank of the uliuliu' m-h in ()HlQl' to fern: the we and libel and the lUHhHP-ihill for rexulri i iially ouwhalf ml the newline. m; lime ing the longer buttw, irlie is ui. ii gr! .W-llv The: narrowing: in lifting pirkers 134 (see Flgffi. 5 and. 1e}. vihwh Higage and elevate the leading needles: of the series of short butt needles at each stroke Of the reeiprocatmy movement, the single wielening picker 145 which engages and carries down into actien the leading pair of needles of the series moving in either directiwin' idle path above the stitch cam 1L8,aind t b ii-rh ruin 135 have zill'Qihly l ven referred in.

The nurrewing or lilting pirkers ii are (if symnieti'i aii ('rlJiHh but ()i like form and are {iluuirl oquiili imil of the (1 il'l of the siihrh cams: iii gauimu Pllllllillllg the picking ii -liilllfl lii girn ier m I'M-ii in the feline." lif slit/ii uni-W of the vyliuiler (his; iii. .1 ing hesul 31 2i ix vvrii filly the riv ler 134 "which if; piwim in this slut. 'lhi ill! "filil'i i:- nmuniml l'uz rotuiiim in u. huriwmlul and in u fl't'liiul p u'riu i i? mule? vial. in lZill of llil. pie-her la sw m? h m by u si irinsg' Eil'lrw-zill iliu' g e al-l n hwnl i A mu Hill. 0. fr

vi liw 'iul'iuiiir s1 =iu. will-ii] iamwinvnl. ii 1111i the awn 2:221. \Vhen llu- 11 4 i: in il imiiiil pueiiiuri shown il ll"= nil in Fig. i it l "l upon :1 lmv Sm url 0i" i u' iaiui -lrwiilli i reel in l uumvii iii (if the iimi-mviit iii the "h"r about in. :u'": 2i i lCilOIi lu- :h l in Title m M e uulu l tem the needle :U-n xi nmveiurnt iwiiunl ill? I e wnli-r. ln lu.- hmul 32.1 0f prim-r at ilus mum ecmntric dis mi from center of the slem 3 0 is provided 21 pin PW whiili serves as u crank pin {one link 32? liming; ii slulml engage mi .t W h hei'h pins tn wezture the necessary ifisl 25201101 The hm pirlieri'i are thus fenneeir-il so that relation about their respective axes: 3'20 will ru'cur simultaneously in ihe ennu direction and t0 the same extent. he [)lfi'timlOli iii lei-i nuuinn in. the slotted nu link Eli-3T e Fig ie in enable ihe idle picker to snap ilnwn the incline (if its: (mm .1243 under the iniiueniru of 'ihe flange 32% Withmilemail .r'uting the iruivvnient of ihe active liisilnu l1; 1. it 5mm the media huli whi' ii i Sin l liiillll' ruin pi fifliia 1*. manque-emu z f u l i. rm in E ml reall Wu been iteil L V I tilt ill .imm lib in iii? in .imi for m" tarry .i'lu-n lsliluli has been reecheil ihe left hand picker rents in in: nntich i! reiiily 4 receiveithe first .miie'dle iii the shert hull. set upen the first l ne slroke M of the nieehine. The nperetion of the nurrowing pickarsthus begins upon the change 311 the mptionflgfi'the needle cyliniier and 

